On Tue, 16 Sep 2003 01:02:49 +0000 (UTC), "Reg Edwards"
wrote:
One can locate a line fault by using:
wavelength = V / f
=====================
How do you manage at the lower frequencies when velocity is a function of
frequency ?
---
Reg
Inventing new problems? Old wine in new bottles more like it ;-)
The velocity to the nearest geo-synchronous satellite is close enough
to constant that it doesn't matter. One repeating station and it is
quite obvious when it is dead (solves the parking problem for the next
one to replace it too).
GEOS too far away? Use LEOS instead and talk around the dead one
(it's going to fall into the sea/Australia/China/Canada anyway).
And for those still in love with wire are promises from nanotechnology
to tether satellites to earth in the future (power generation for
cheap - life expectancy for the guy that throws the switch is nil
however).
73's
Richard Clark, KB7QHC
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